Gas-producer.



No. 667,925. Patented Feb. \2, 19m. w. SWINDELL.

GASPRODUCEPL (Application filed Sept. 28, 1900.)

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No. 667,925. Patented Feb. 02, l90l. W. SWINDELL.

GAS PRODUCER.

(App lication filed Sept. 28, 1900) (No Model.) I 2 Sheets-Sheet 2.

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aren't GAS -PRODUCEFL EEECIFZGATIUN forming part of Letters Patent No. 667,925, dated February 12, 1901. Application filed September 28, 1900. Serial No. 81,447. (No model.)

To a whont it nuty concern.-

Be it known that I, WILLIAM SWINDELL, of Allegheny, in the county of Allegheny and State of Pennsylvania, have invented a certain new and useful Improvement in Gas- Producers, of which improvement the following is a specification.

The object of my invention is to providea gas-producer of simple and inexpensive consl ruction which shall be capable of effectively and economically generating fuel-gas from anthracilecoal or combustible material of an alogous character.

The improvement claimed is hereinafter fully set forth.

In the accompanying drawings, Figure 1 is a vertical transverse section through a gasproducer illustrating an application of my invention at the line a a of Fig. 2; Fig. 2, a vertical longitudinal section through the same at the line b b of Fig. 1, and Fig. 3 a horizontal section at the line c of Figs. 1 and 2.

In the practice of my invention the vertical wall 1 of the producer is built of suitable masonry, preferably of elliptical contour, as shown in Fig. 3, and incloses a generating chamber 2, which is covered and closed at its top by an arched roof 3. Inclined grates at are supported at the sides of the lower portion of the generating-chainber, and longitudinalblast-pipes 5, to which currents of steam are supplied by pipes (5, controlled by valves '7, extend along the lower sides of the grates 4:. t. The lower portion of the generating-chamber communicates with an ash-pit 8, which is preferably adapted to be Water sealed, transverse plates 9 extending across the ashpit to a level below that at which Water may normally stand therein, as shown in Fig. 2.

The side walls 1 of the generating-chamber are preferably formed with longitudinal offsets or shoulders 10, which may be arched, as shown, and are located at or adjacent to the level at which fuel is ordinarily maintained in the generating-chamber, and a substantially vertical fuelsupply passage 11 (one or more, according to the length of the generatirig-chamber) is formed in each of the side walls. The fuel-supply passages 11 extend from the tops of the side walls to the shoulders 10, at which their lower ends are open to the generating-elmm oer 2, and each of them is provided at i ts top with a suitable feedhopper12, through which fuel may be charged at proper intervals, as in ordinary practice. In the instance shown three fuel-supply passages are located on each side of the generating-chamber; but it will be obvious to those skilled in the art that the number of supplypassages employed is not of the essence of my invention. A central supplypassage 13, (one or more,) having a feed-hopper l4, may,

if desired, be provided in the roof 3 of the generating-chamber. A dischargepassage 15 leads from the generatingchambcr to a desired point of delivery.

In the operation of the producer the anthracite or analogous fuel which is employed is charged into the fuel-supply passages 11 and passes down through the same into the generatingchamber 2, in which it is supported on the grates 4. The upper level of the body of fuel in combustion in the generating-chamber is maintained at or near the lower discharge ends of the fuelsupply passages, and the lower portions of the bodies of fuel which stand in said passages become ignited and burn therein before passing therefrom into the generating-chainhers. A more thorough and eifective evolution of gas from the fuel is thereby attained than when, asin practice prior to myiuvention, the fresh fuel is charged directly from the top of the generating-chamber upon the body of ignited fuel therein.

I claim as my invention and desire to secure by Letters Patent- 1. In a gas-producer, the combination of a generating-chamber, a lower fuel-support therein, and a substantially vertical downwardly-extending fuelsupply passage inclosed in the side wall of the generatingchamber and opening thereinto at its lower end.

2. In a gas-producer, the combination of a generatingchamber, a lower fuel -support therein, a longitudinal offset or shoulder formed on a wall of the combustion-chainber, at or adjacent to the level at which fuel is normally maintained therein, and a downwardly extending fuel supply passage inthe side walls of the generating-chamber and closed in said Wall and opening into the genopening thereinto at or adjacent to the level :0 mating-chamber at the shoulder or offset. at which fuel is normally maintained therein.

3. In a as-producer, the combination of a 5 generating-chamber, grates supported at the WILLIAM SWINDELL sides of the lower portion thereof, and a pin- Witnesses: rality of substantially vertical downwardly- J. SNOWDEN BELL, extending fuel-supply passages inclosed in CLARENCE A. WILLIAMS. 

